105 results about "Fork tuning" patented technology

A tuning-fork-type driving element includes: a movable part rotatable about a rotation axis; a coupling part extending from the movable part along the rotation axis; a pair of arm parts placed with the coupling part located therebetween; a support part coupling the coupling part and the pair of arm parts to a fixation part; and drive parts placed on the arm parts, respectively. The pair of arm parts each have a protrusion that overlaps a node line that occurs when the arm parts vibrate in a higher-order vibration mode higher than a first-order vibration mode or an extension line of the node line.

The utility model discloses a multi-tuning fork mechanical leakage listening rod, which relates to the technical field of pipeline detection and comprises a supporting rod, a mounting rod is mounted at the top of the supporting rod, a leakage listening assembly is arranged at the bottom of the supporting rod, and a connecting rod for adjusting the use length is arranged at the top of the supporting rod. And sound transmission rods are arranged in the connecting rod and the mounting rod. The beneficial effects of the utility model are that the first flange plate and the second flange plate are fixed through the bolts, and the connecting rod can be installed between the supporting rod and the installation rod, thereby achieving the effect of adjusting the use length, avoiding the problem of insufficient length during the detection of a deeper underground pipeline, and improving the detection precision through arranging a plurality of groups of tuning forks. The sound frequency can be distinguished more finely, the sensitivity and accuracy of water leakage detection are improved, the tuning fork transmits sound to the sound transmission rod through the sound listening rod, and the sound amplification cover amplifies the sound transmitted by the sound transmission rod.

The utility model discloses a multipurpose feeling detection device, which comprises a grab handle and an end head, the front end of the grab handle is connected with the middle part of the end head, the top end of the end head is provided with a tuning fork, a plurality of round counter bores are arranged from the bottom surface of the end head to the inside of the end head, a guide groove is arranged from the outer side surface of the end head to the inside of the end head, and sliding columns and springs are arranged in the round counter bores. The bottom end of the sliding column is clamped with the top end of the spring, a clamping block is arranged on the outer side face of the top of the sliding column, and a testing element is arranged in the center of the bottom end face of the sliding column and completely located in the round counter bore in the initial state. The grab handle comprises a lower handle, an upper handle, a hinge disc and a connecting handle, the inner end of the lower handle and the inner end of the upper handle are hinged together through the hinge disc, and the hinge disc is connected with the end head through the connecting handle. According to the utility model, the functions of qualitative tactile sensation, quantitative tactile sensation, pain sensation, vibration sensation and composite sensation evaluation are integrated, other tools are not needed in the sensation evaluation process, and the device is simple and compact in structure, small in size and convenient to carry and use.

The invention relates to the technical field of chemical powder conveying, in particular to a powder storage tank high alarm switch false alarm prevention device and a control method thereof. According to the technical scheme, the false alarm prevention device for the high alarm switch of the powder storage tank comprises a powder bin, a powder conveying pipeline, a tuning fork main body, a tuning fork switch, a vibrator, an exhaust port, an air source pipe, an electromagnetic valve and a DCS control line, the powder conveying pipeline is arranged on the top face of the powder bin, and the tuning fork switch is arranged on one side of the powder conveying pipeline; a tuning fork body is arranged on the top face in the powder bin and electrically connected with the tuning fork switch. The pipeline below the mounting flange of the high-alarm tuning fork switch is vibrated at regular intervals, so that accumulation of polyethylene powder flying dust on the high-alarm tuning fork switch can be effectively removed, false alarm of the high-alarm tuning fork switch due to material hanging is prevented, the false alarm rate of the high-alarm switch is remarkably reduced, and interlocking shutdown of an air conveying system caused by false alarm is avoided.

The utility model provides a multifunctional tuning fork device for ear-nose-throat head and neck surgery, and relates to the technical field of medical instruments, the multifunctional tuning fork device mainly comprises a tuning fork, a connecting rod assembly and a hammer, the tuning fork is Y-shaped, the connecting rod assembly is fixedly arranged at the non-bifurcated end, the hammer is arranged at the tail end of the connecting rod assembly, and the connecting rod assembly is connected with the hammer. The connecting rod assembly comprises a connecting rod, a first handle and a second handle which are arranged in sequence, one end of the connecting rod is fixedly connected with the tuning fork, the opposite end of the connecting rod is detachably connected with one end of the first handle, the opposite end of the first handle is detachably connected with one end of the second handle, and a sound hammer is fixedly arranged at the opposite end of the second handle; according to the tuning fork device, when the tuning fork device is not used, the second handle and the first handle are connected together, so that forgetting to carry the tuning fork can be prevented, when the tuning fork device is used, the second handle and the first handle are detached, the tuning fork and the hammer are used in an impact mode, and a doctor can use the tuning fork device conveniently.

1. Name of the product in this design: Tuning Fork. 2. Purpose of this design: For use in physical resonance experiments. 3. The key design features of this product are its perspective view. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The invention belongs to the technical field of lead-bismuth reactors, and particularly relates to a lead-bismuth reactor control rod assembly positioning structure. The control rod cluster comprises an upper end positioning structure, a lower end positioning structure, a tuning fork type upper end plug and a tuning fork type lower end plug, the control rod cluster is located between the upper end positioning structure and the lower end positioning structure, the control rod cluster comprises 19 control rods, the upper end positioning structure is connected with the tuning fork type upper end plug in a matched mode, and the lower end positioning structure is connected with the tuning fork type lower end plug in a matched mode. The upper end positioning structure and the lower end positioning structure are located at the two ends of the control rod bundle and jointly achieve positioning of the control rod. On the basis of meeting the requirement of flow distribution uniformity of the control rod assembly coolant and overcoming transverse shaking of the control rod, the lead-bismuth coolant uniformly flows through the rod cluster type control rod and the transverse impact of the coolant on the control rod is reduced on the basis of realizing rapid assembly of the control rod assembly.

The invention relates to an iodine adsorption material and a preparation method and application thereof, and belongs to the technical field of iodine adsorption. The iodine adsorption material provided by the invention comprises at least one structural component which is in a tuning fork shape, has a tuning fork shape and groups such as a pyridine ring and amide, and accords with a specific general formula (I), a general formula (II) or a general formula (III); the iodine adsorption material is free of purification in the preparation process, high in yield and suitable for large-scale production; the water-phase iodine adsorbent has good iodine adsorption capacity, can realize ultra-fast adsorption of water-phase iodine, still has high adsorption efficiency after being recycled for multiple times, solves the problems of slow adsorption rate, high preparation cost, poor stability, poor cycle performance and the like of the existing adsorbent, and has very high application value.

A support for calibration of a tuning fork type online densimeter comprises a base and a support body fixedly installed on the base, a housing is fixedly installed on the side wall of the support body, a lifting mechanism is installed in the housing and comprises a servo motor, and the output end of the servo motor is connected with a ball screw arranged in the vertical direction through a flexible coupler. A movable nut of the ball screw is connected with a supporting plate, a tray is mounted at the end part of the supporting plate, a mounting hole for mounting the tuning fork type online densimeter is formed in the tray, a through hole corresponding to the mounting hole is formed in the supporting plate, an adjusting bolt is arranged on the bottom surface of the supporting plate, and the adjusting bolt penetrates through the supporting plate and is propped against the tray. According to the utility model, the height of the tuning fork type on-line densimeter can be adjusted according to the length of the sensor at the lower end of the tuning fork type on-line densimeter, so that the tuning fork type on-line densimeter can meet the calibration requirements of tuning fork type on-line densimeters with different sizes.

The application discloses an anti-disturbance tuning fork densimeter probe for high-viscosity fluid, which comprises a bearing sleeve, a mounting plate fixed in the bearing sleeve, two groups of butterfly spring sets symmetrically arranged at the bottom end of the mounting plate, a bearing plate fixed at one end of the butterfly spring set, a recess cavity formed in the bearing plate, a piezoelectric ceramic piece mounted in the recess cavity, and a tuning fork probe fixed on the piezoelectric ceramic piece. The anti-disturbance mechanism is composed of a disturbance shielding sleeve, a spiral flow guide piece, a spiral flow channel and a polyurethane buffer layer. During the measurement process, the disturbance shielding sleeve guides the high-viscosity fluid to flow through the tuning fork probe stably through the spiral flow channel, so that the direct impact of the flow velocity fluctuation on the tuning fork probe is avoided, meanwhile, the polyurethane buffer layer can absorb the fluid impact energy, and the double anti-disturbance effect can be realized by the combination of the two, the measurement precision of the device is improved, and the device has high use performance.

The embodiment of the invention discloses a self-cleaning tuning fork sensor. The self-cleaning tuning fork sensor comprises a tuning fork sensor and a controller, the tuning fork sensor comprises a tuning fork body and a vibration assembly. The controller comprises a self-cleaning module; the self-cleaning module is electrically connected with the vibration assembly and used for executing cleaning operation. Wherein the cleaning operation comprises the step of controlling the vibration assembly to drive the tuning fork body to vibrate so as to remove dirt attached to the surface. According to the embodiment of the invention, the self-cleaning module is added for removing dirt on the surface of the tuning fork body, manual disassembly for cleaning is not needed, the manual maintenance cost is reduced, the shutdown maintenance time is shortened, and meanwhile, the detection precision stability and long-term operation reliability of the sensor are enhanced.

The invention discloses a micro-electro-mechanical gyroscope which comprises a plurality of tuning forks of the same structure, and each tuning fork of the tuning forks comprises a first frame, a second frame and a third frame, a second frame adjacent to the first frame; a Coriolis force unit coupled to the first frame and the second frame, respectively; a drive unit and a detection unit, the drive unit being located in one of the first frame and the second frame, the detection unit being located in the other of the first frame and the second frame; wherein the first frames in the adjacent tuning forks are coupled together, and the second frames in the adjacent tuning forks are coupled together.

The application discloses a processing technology of a tuning fork crystal, which comprises glass beads, tuning fork pieces arranged on the glass beads, shells arranged on the tuning fork pieces and lead wires arranged at the bottom of the glass beads, the tuning fork pieces are ST cut type, silver-plated electrodes are arranged on the tuning fork pieces, and the silver-plated electrodes are designed in a rotary mode. The unique ST cut type is adopted instead of the traditional DT cut type, so that a higher frequency range can be obtained. Since the vibration mode of the ST cut type is a torsional vibration mode, the electrodes are designed in a rotary mode, so as to conform to the oscillation mode of the ST cut type, thereby ensuring that the crystal piece can work stably after starting to vibrate. By adopting the unique ST cut type, the traditional tuning fork structure is retained, the rotary electrodes are utilized to promote the crystal piece to start to vibrate smoothly, and the torsional vibration mode maximally realizes the frequency which cannot be reached by the conventional tuning fork crystal.

The utility model discloses an integrated device with a stop line automatic cleaning tuning fork densimeter, which relates to the technical field of tuning fork densimeters and comprises a butt flange and a densimeter instrument, a flange pipe used for being connected with the densimeter instrument is fixedly arranged on the butt flange, a cleaning jacket is connected onto the flange pipe, a water inlet pipe is arranged on one side of the cleaning jacket, and a water outlet pipe is arranged on the other side of the cleaning jacket. A water inlet electromagnetic valve is connected to the water inlet pipe, a water distribution ring communicated with the cleaning jacket is arranged in the flange pipe, the tuning fork rod is sleeved with the water distribution ring, the water distribution ring is movably connected into the flange pipe, the water distribution ring is of a hollow structure, a water inlet hole is formed in the top of the water distribution ring, a self-sealing assembly is arranged on the water inlet hole, and a cleaning assembly used for cleaning tuning fork terminals is arranged at the bottom of the water distribution ring. The device is simple in structure, is provided with an automatic water closing structure, can prevent backflow in the production process, can perform automatic in-situ cleaning on the tuning fork terminal of the tuning fork densimeter when a line is stopped, and can effectively ensure the detection precision of the tuning fork densimeter.

The invention provides a tuning fork sensor integrated measuring device, which comprises a test base and a plurality of test assemblies, and the plurality of test assemblies are arranged on a test mounting surface of the test base in an array. The test assembly comprises a mounting base, a tuning fork sensor, a spring needle assembly, a spring needle mounting seat, a test flip cover, a buckle assembly, a measurement and control circuit, a bottom plate, a shock absorber assembly and a shell, and through specific design of the mounting base and the spring needle assembly, stable assembly and electrical connection of the sensor are realized; and meanwhile, a mode of integrally mounting the base in a vibration reduction manner and fixing the sensor in a buckling manner is adopted, so that external interference is reduced, and test accuracy is improved.

Spectroscopic sensor for characterizing the absorption or determining the concentration of solid materials or liquid samples based on the photoacoustic effect, comprising - a device into which the liquid or solid sample to be analyzed is inserted or placed, - at least one laser in modulation mode to excite the material-specific molecules, - at least one sound transducer for detecting the sound pressure wave, - a device for detecting and processing the photoacoustic signal, characterized in that at least one sound transducer in the form of a quartz tuning fork (QTF) is used, the resonance frequency of which corresponds to the laser modulation frequency, that an acoustic resonator of a certain geometry, which is placed on the sample and has the same resonance frequency as the QTF, is used, that the laser modulation frequency corresponds to the resonance frequency of the resonator, and that the gas which fills the resonator shows as little or no absorption as possible in the wavelength range of the laser.

The utility model belongs to the technical field of precision sensors, and discloses a novel silicon resonance accelerometer structure based on lever difference. The structure comprises an upper layer, a middle layer and a lower layer, the middle layer is a monocrystalline silicon micro-mechanical structure and comprises a mass block, an amplification lever structure, a double-end fixed tuning fork type resonator and the like; through a central anchor point and two amplification lever structures with opposite force transmission directions, the stress difference of the two resonators is realized, the number of supporting anchor points is reduced, the resonators are in a thermal expansion free state under a temperature change working condition, the thermal stress influence is reduced, and the temperature performance is improved; meanwhile, the area of the stress isolation frame is reduced, the difficulty of the processing technology is reduced, and the engineering application of the silicon resonance accelerometer to an ultra-precise system is promoted.

1. Name of the product in this design: Tuning Fork (for neurology). 2. Purpose of this design: A tuning fork medical device specifically designed for use in neurology. 3. The key design features of this product are the combination of shape and pattern. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The present invention discloses a high-precision electromechanical coupling resonant tuning fork sensor based on piezoelectric or inverse piezoelectric effect, comprising a tuning fork body formed of piezoelectric material; the tuning fork body comprises a tuning fork base and two or more tuning fork arms provided on the tuning fork base; each tuning fork arm is embedded with at least one excitation electrode and at least one sensing electrode; all excitation electrodes are connected to an excitation electrode connection point via wires; all sensing electrodes are connected to a sensing electrode connection point via wires; the excitation electrode connection point and the sensing electrode connection point are respectively provided on the tuning fork base for electrical connection with external wires; the outer peripheral surface of the tuning fork body corresponding to the tuning fork arm is provided with a metal-plated electrode with adjustable electrode potential. The present invention has the characteristics of high robustness, high quality factor and high sensitivity, is suitable for working condition measurement in harsh environments, and is expected to be applied to fields such as petrochemical, food, gas sensing, medicine and scientific research.

The utility model belongs to the technical field of coal-bed gas development, and discloses a coal-bed gas shaft pulverized coal migration and settlement test system which comprises a simulation shaft which comprises an inner-layer pipe column and an outer-layer pipe column, an annular space part is arranged between the inner-layer pipe column and the outer-layer pipe column, and the annular space part is communicated with the inner-layer pipe column. The simulation shaft can rotate and incline around the center of the simulation shaft within a preset angle; the liquid injection system is connected with the first end of the annulus part and used for inputting pulverized coal slurry into the annulus part; the gas injection system is connected with the second end of the annulus part and used for inputting simulation gas into the annulus part, and the simulation gas and the pulverized coal slurry can flow to the inner-layer pipe column from the annulus part and return to the liquid injection system; the tuning fork resonance sensor is arranged in the simulation shaft in a penetrating mode, and a fork body is located in the inner-layer pipe column and used for detecting the vibration frequency when the pulverized coal slurry and the simulation gas flow in the inner-layer pipe column. The device can simulate the migration and settlement of pulverized coal in wellbores of different well types.

The embodiment of the present application relates to a tuning fork type piezoelectric vibration piece and an oscillator, which are used to improve Q value. The tuning fork type piezoelectric vibration piece comprises a base and two vibration arm parts extending from one end of the base, the two vibration arm parts are symmetrically arranged, and the polarities of the driving electrodes at corresponding positions are opposite; for each vibration arm part: a driving groove is arranged on the first main surface of the vibration arm part, and an inner wall driving electrode is arranged on the inner wall of the driving groove; a side wall driving electrode is arranged on the side wall of the vibration arm part; at least one planar driving electrode is arranged on the second main surface of the vibration arm part corresponding to the position of the driving groove along the width direction of the vibration arm part; and the first main surface and the second main surface are two opposite surfaces.

The invention relates to a quartz crystal resonator laser welding process and laser welding equipment. The quartz crystal resonator laser welding process comprises the following steps that S100, bases are assembled into a lower welding jig one by one after being sorted; s200, the tuning fork connecting end of each base is evenly coated with soldering paste; s300, the tuning fork pieces are assembled into an upper welding jig one by one after being sorted, the upper welding jig is assembled into a lower welding jig to form a welding jig, and the lower end of each tuning fork piece in the welding jig sinks into the welding paste and is transversely arranged between the two leads of the base; s400, the welding jig is conveyed into a welding station in laser welding equipment to be fixed, and laser heads are evenly distributed on the two sides, located on the welding jig, in the laser welding equipment; and S500, the laser head conducts laser welding on the tuning fork connecting ends of the base one by one at the preset welding interval, and the two electrode faces at the lower end of the tuning fork piece are welded and fixed to the two leads on the base correspondingly. The method has the effect of reducing energy consumption.

An improved handle for hammers and other swing-handle tools designed to reduce the shock of impact during use. The handle features a longitudinal gap running approximately halfway up from the bottom end of the handle, creating a tuning fork-like structure that flexes upon impact. This design significantly reduces recoil and vibration, offering improved comfort, control, and protection for the user's hand, wrist, and arm. The handle is made of traditional wood materials and is compatible with standard hammer heads.

The present invention relates to the technical field of measuring devices, and specifically to an online density meter, wherein a connecting control component is fixedly connected to the bottom of the control body, a measuring tuning fork is fixedly connected to the bottom of the connecting control component, two cleaning scrapers are movably sleeved on the outer sides of the measuring tuning fork, three mounting holes are provided at the ends of the two cleaning scrapers, scraper springs are fixedly connected inside the mounting holes, a connecting protective block is fixedly connected between the scraper springs inside adjacent mounting holes of the two cleaning scrapers, and the connecting protective block is slidably engaged inside the mounting holes, and has the advantages of simple structure, easy operation, cleanability and high measurement accuracy. Through the above-mentioned scraping and vibration mechanism, the attached materials on the measuring surface can be effectively removed to ensure the accuracy of the measurement results. At the same time, the design of the online density meter takes into account the needs of vibration measurement to ensure that there will be no interference with the vibration measurement after cleaning.

The tuning fork for observing the magnetic field comprises a tuning fork body, an assembly and a magnet, the tuning fork body comprises a fork handle and two vibration arms connected with the fork handle, the front ends of the vibration arms are fixedly connected with the fork handle, and the tail ends of the vibration arms are provided with first grooves used for inserting the magnet or the assembly. The lower end of the assembly is inserted into the first groove at the tail end of the vibrating arm, and the top of the assembly is provided with a second groove for inserting a magnet. The tuning fork for observing the magnetic field has the following advantages: (1) the vibrating arm of the tuning fork can be provided with a magnet and also can be provided with an assembly with the magnet, and the installation mode is simple and easy to operate; (2) by knocking the tuning fork, the influence of the magnetic field on the tuning fork can be found according to the vibration time of the tuning fork and a spectrogram, which is intuitive and easy to understand; and (3) a vibration magnetic field with the same vibration frequency as the tuning fork can be provided.

The utility model is suitable for the technical field of alcohol concentration detection, and provides a concentration detection device. The detection rod is fixedly connected with a tuning fork and can detect the concentration of fluid such as alcohol, a flange plate for fixing the detection rod is fixedly connected above the detection rod, the detection device and the detection port can be fixed through the flange plate, and a gauge outfit for displaying detection data is fixedly connected above the flange plate. Fluid concentration data detected by the detection rod is displayed through the gauge outfit; the lower portion of the flange plate is sleeved with a sealing piece for sealing the contact face of the detection rod, the flange plate is fixedly connected with an elastic piece abutting against the sealing piece and a pushing piece which drives the elastic piece to contract and is rotationally connected with the flange plate, the sealing piece can improve the sealing effect of the contact face of the detection device and the detection opening, and volatilization and leakage of fluid are avoided.

The utility model provides a frequency-adjustable tuning fork, which comprises two vibration arms and a fork handle, the top end of the fork handle is provided with two vibration arms, each vibration arm is provided with a frequency conversion part which can move up and down along the vibration arm and is fixed according to the required position, the middle part of each frequency conversion part is provided with a through hole sleeved on the vibration arm, and the side surface of each frequency conversion part is provided with an adjusting nut; a first connecting part is arranged on the left side of the penetrating hole, a second connecting part and a third connecting part are arranged on the front side and the rear side of the penetrating hole respectively, a fourth connecting part is arranged on the right side of the penetrating hole, a fifth connecting part is arranged on the inner side of the fourth connecting part, a through hole is formed in the center of the fifth connecting part, and threads are arranged in the through hole and used for allowing an adjusting nut to penetrate through. The end, close to the penetrating hole, of the adjusting nut is fixedly connected with a locking part. According to the frequency-adjustable tuning fork, the frequency conversion part is improved, the contact face of the adjusting nut and the fork handle is increased, the frequency conversion part can abut against the fork handle and is not prone to moving, and the frequency-adjustable tuning fork is simple in structure and convenient to operate.

To provide a tuning fork type piezoelectric element capable of achieving miniaturization or improvement of impact resistance required in a tuning fork type piezoelectric vibrator, and to provide a method of manufacturing the same.SOLUTION: The front principal surface excitation electrodes 5 and 6 and the back principal surface excitation electrodes 7 and 8 of the vibration arms 3132 and of the tuning-fork type piezoelectric element 1 are electrically connected via the through-holes 141142 and penetrating from the front surface to the back surface, and the wiring pattern 13 electrically connecting the front principal surface excitation electrode 5 and the bonding electrode 11 formed on the base 30 and the wiring pattern 18 electrically connecting the front principal surface excitation electrode 6 and the side surface excitation electrode 9 are provided on the front surface of the base 30. The bonding electrode 11 and the side-surface excitation electrode 10 are connected to each other on the side surface where the base 30 and the vibrating arm 32 are coupled to each other, the bonding electrode 12 and the side-surface excitation electrode 9 are connected to each other on the side surface where the base 30 and the vibrating arm 31 are coupled to each other, and no wiring pattern corresponding to the wiring pattern 13,18 is provided on the back surface on which the bonding electrode 11,12 is formed.SELECTED DRAWING: Figure 1

Provided is a tuning fork type piezoelectric vibrating piece (2). A pair of vibrating arm portions (21, 22) extending in a first direction from an end portion (201) on one side of the base portion (20); and an extended base portion (23) protruding in a direction opposite to the first direction from an end portion (202) on the other side of the base portion (20). And an extended section (24) extending from the extended base section (23) in at least one of a second direction perpendicular to the first direction, the base section (20) having a reinforcing section (26) in a narrowed section (250) formed by the extended base section (23), the base section (20), and the extended section (24), the reinforcing section (26) being configured so as to extend from the narrowed section (250) in the second direction. An end surface (261) in the second direction is configured to be approximately linear in a plan view.

The invention provides a motor connecting plate metal injection molding packaging and tuning fork assembling technology, and relates to the field of vehicle-mounted small motor annular metal injection molding part machining. Aiming at the requirement that an annular injection molding part needs to integrate a terminal, a lining, a tuning fork insert and a temperature sensor, the technology is matched with an insert positioning structure through a mold special positioning assembly; a tuning fork insert multi-sheet stamping riveting design is combined, the insert layout precision and connection stability are improved, a sensor mounting groove and a tuning fork assembly structure are reserved in the injection molding stage, a temperature sensor is welded and fixed, and a tuning fork is positioned and assembled through clamping. The process has the beneficial effects that the layout precision of the annular injection molding insert is improved, the riveting tuning fork insert and the body are connected more firmly, and the riveting tuning fork insert is not prone to failure under vibration; a sensor groove and a tuning fork structure are reserved, the process is saved, the body is protected, the sensor is welded more stably, the tuning fork is assembled quickly and accurately, and cost is reduced and efficiency is improved.